This video explains why you should avoid Voltage mode VRMs and shunt compensation for the VRM Error Amplifier. The better performance of a current mode VRM with series compensation for the Error Amplifier is clearly demonstrated with simulations and measurements.

This application note discusses how Alt mode works with power delivery circuitry to transmit/receive unique data signals/more power, so Type-C can be used for many USB & non-USB, device connections/control.